1 Listening to music is more interesting than watching TV. => I prefer listening to music to watching TV

2. It isn't important for you to finish the work today. => You don't need to finish work today.

3. How much is this dictionary? => What is the price of this dictionary?

4. How heavy is the chicken? => What is the chicken's weight?

5. Mr. Trung and Mrs. Trung type quickly . => Mr. Trung and Mrs. Trung are quick typist.

6. I got to work in half an hour yesterday. => It took me half an hour to work yesterday.

7. My mother doesn't like coffee and tea. => My mother likes neither coffee and tea

8. You shouldn't eat too much candy. => You'd better not eat too much candy.

Vì góc \(A1=B1\) \(\left(1\right)\)
Mà \(A1\) và \(B1\) là 2 góc so le trong \(\left(2\right)\)
Từ\(\left(1\right)\) và \(\left(2\right)\) \(\Rightarrow a//b\)
Vì đường thẳng \(c\perp a\) \(\Leftrightarrow c\perp b\) ( đpcm )

Tính theo mẫu :

55 dm : 5 =